test_cmp expect actual
'
+test_expect_success 'diff-highlight handles --graph with leading dash' '
+ cat >file <<-\EOF &&
+ before
+ the old line
+ -leading dash
+ EOF
+ git add file &&
+ git commit -m before &&
+
+ sed s/old/new/ <file >file.tmp &&
+ mv file.tmp file &&
+ git add file &&
+ git commit -m after &&
+
+ cat >expect <<-EOF &&
+ --- a/file
+ +++ b/file
+ @@ -1,3 +1,3 @@
+ before
+ -the ${CW}old${CR} line
+ +the ${CW}new${CR} line
+ -leading dash
+ EOF
+ git log --graph -p -1 | "$DIFF_HIGHLIGHT" >actual.raw &&
+ trim_graph <actual.raw | sed -n "/^---/,\$p" >actual &&
+ test_cmp expect actual
+'
+
test_done